Loose-leaf-binding device.



MARTIN el N EUNER, or Los Antennas,'calnironitiiry 'noosnrnrirrinniuo Dnvior..

Specification of Letters Patent. l

,Patented Mar. s, -i 91o.

l Application mea March' i5, isos. 'sei-'iai iid. 483,610. 1

To all whom it 'may concern,"

Be it known that I,=i\lA1i'rii\:` C. Nausea, a

' .citizen of the United States, residing atrlaos. A Angeles, in thecounty of Los Angeles and State' ot' -Caliitornia -have invented al'. new

and useful Loose-Leaf-Binding Device, of which the following-is a specification..-

'lL`hc invention'relates to loosel leaf bindersl of the type in which thefbin'ding post or-de`.

-vice extends through theleaves to hold the and the oliject'ofthe present .leaves together,

provide simple and effective invention is to means whereby the said post device may,

4back at. tlieslit topass b 4, which extends througsecured, as by be operated to quickly. loosenatheleaves .to erniit ready insertion -or removal-of' .the

' eaves.

Referring toltheidrawings: is

a section takentraiisversely through aloose leaf book equipped with this inveiition, the section being 'on line `:r1-001.4

.lis a sect-ion on line 'ZQ-Z-Fig. 1. Fig. 3 is an enlarged sectionjof` al modified form of postlj" c f .f

. f1 designates the leaves Whichfinuthel present instance are. shown as provided'z with perforations" .2 nearj ytlieii"` bindingy .c edges,

\ each-leafhaving a'slit B Which extends from the perforation clear tothe adjoining edge so that the portions of the the binding post the perforation, emov'al .or `insertion -of the to ermit the leaf. The leaves4 are not necessarily .cons tructed inthis mannenas it will be obviousl that any leaf of this type may be used.4 The leaves in this instanceare rshown as con-` iined between upper and lower covers 5 `and 6, which are' joined by flexible hinges 7, with upper and' lower baclc members 8 and 9, each of which members is"forinedf of a -meta-l body portion 10 lbent longitudinally to form-iaright angle incro'ss section, thus forming overla pingbaclrplates 11 and side `plates 12..'v ich are connected with the respective flexible hinges 7 .i ping back'plates 11 enable the inembei's 8 and 9 td be adjusted toward and from each other tosuit the thickness ofthe book` or number'of leaves between the covers.

The binding post or device 4' comprises a tube 13', the-lower end of which is suitably brazing, to 4the member 9; The tube 13 has internal threads'14 atj-each end, which i tance only along the tube, thus leaving an unthreaded intermediate portion 15, the inf` rig'. 2., rig; a f

leafmay be bent,

threads extend for a short dis.

and of a diameter at least` as' grcat'as the ldianieterof theI threadedV portions at the: bottoni ofthe threads. Coacting with the l tube 13 is a bolt 16 which at its lower end is provided with screw are adapted to b e screwed v completely through the upper screw threads 14 of the tube and engage with the lower screw threadsf14, the member 8 having perforation 18 of yample size to permit lthe ternal'dianicterof which greater than the i internal'diameterof the ythreaded portions,

threads 17 which threaded end 17 of the boltto'pa'ss freely therethrough. v The upper end of the bolt 1.6 has a head .19 Whichis kiiurled. to 'permit the 'bolt 'being readilyo erated manually, and vthe shank of the bo t is' of a' diameterless screw threaded portion 14 and gis smooth sov through 4theupper threaded portion '14.

lWhen the leaves are secured'in position4 thari'the' internalr diameter of the upper that thel shankf can readily slip endwise `in the book ready for use tlie bolts 16 are `screwed down tight with the threaded portions 17 enga-ging the lower screw threads 14 r of the tubes, thereby clamping the back por-1 tions of the leaves securely between tlieback .members 8 and 9. When' it'isdesired. to insert oi-- r'cinovea leaf the bolts 16 areunscrewed a few turns sutlicient to disengage t'l'ie'threadsl 17 from the lower threaded portions 14 of thetube and then'the bolts are v `pulled out longitudinally until the lthreads 17 strike the lowermost threads 14 at the upper end of the tube, the ,upper threads 14 acting asf shoulders or stops to preventthe dinal-ly. This adjustment ,ofthe'bolts permits the back members S anfd-9 to bey separated forquitefa distance and permits' easy access' ofthe fingers of the operator to the bolts from being' pulled farther out longituinneredge ofthejleaves to insert or remove the same', and this wide opening is-accom'- lished by merely a few turns of the bolts to longitudinally 'without further unscrewing, thereby giving a very quick opening and c ermitting ready insertion orrenioval of eaves. After the leaves have been inserted or removedthe'bolts are 'pushedback longi tudinall until-the threads 17 come in contact wit into place and clampthe covers. eA very oosenthem and permit them-to be pulled.T

the lower'` threads14 of" the tubes land then the bolts' are' turned' to screw themfew screw threads are sufficient to retain `the bolts securely7 r'lthe4 upper 'threads 14 yare i provided to act as a stop to limit thevoutward non-revoluble sliding action of the bolts, but obviously permit the bolts to be unscrewed entirely from the tubes should it be desired to completely separate the covers, and they also permit the bolts to be rengaged with the tubes with equal facility.

lf desired, the bolt 16 may be provided with screw threads 17n at its upper end also,

to engage with the upper threads 14 of the "tube, as indicated in Fig. 3, in which form f in Fig. 3.

an aggregate of six threads and yet can be,

disengaged from the tube or engaged with the tube with only three revolutions, Whereas when all of the threads are at one end of the bolt, twice as many revolutions are required asfwhen they are distributed, as shown In addition to this, the smooth surface 15 of the tube is lengthened, thereby affording a greater loosening. movement of the covers without actual disengagement.

` Whatl claim is: v

1. A loose [leaf binding post or device ll comprising two telescopic members both of 'which are threaded to engage each other when contracted, and the outer member having threads to acteitlier as a stop for the .inner member orto permit the inner member kbeing screwed therethrough to disengage or engage it with the other member.

2. .A binding post or device comprising an outer tube with internal screw threads at each end, and a bolt threaded at one end and' adapted to be screwed into the threads in .the tube, the intermediate portion of the tube. being smooth to permit endwise sliding movement of the bolt.

3. A binding post or device comprising a tube one end of which is secured to a cover, said tube having screw threads at each end with a smooth intermediate portion', a bolt passing through a perforation in the other cover and having screw threads adapted to mesh with screw threads in the tube, and the shank of the bolt having :i smooth orti'on pern'iittingend .wise movement of tie bolt through the tube.

4. A binding post or device comprising a tube' one end'of which is secured to a cover,

said tube having screw threads at each end with a smooth intermediate portion, a bolt passing through a perforation inthe other cover and having screw. threads adapted to meshwith screw threads in the tube, and the shank of the bolt having a smooth portion permitting endwise movement or the bolt through the tube, said bolt having a knurled head.

5. A loose leaf binding post or device comprising two telescopicv members, the outer member having threads near each end with an intermediate smooth portion, and the inner member having threads at two portions. thereof to engage the respective threaded portions of the outer member, the intermediate portion of the inner member being smooth to permit endwise sliding movement of the inner member when it is turned to free the screw threaded portions.

' In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 8th day of lMarch 1909.

t MARTIN C. NEUNER.

In presence of- G. T. HACKLEY, FRANK L. A. GRAHAM. 

